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ratelena [41]
2 years ago
13

Questions

Chemistry
1 answer:
Anni [7]2 years ago
7 0

Gallium is the element that belongs to the group 3 and the fourth period. Ga is symbol of Gallium.

  • The element gallium has an atomic number of 31.
  • While highly pure gallium is covered in a dazzling silvery colour, solid gallium is a blue-grey metal with an orthorhombic crystalline structure.
  • It is a crucial part of numerous semiconductors. Due to its capacity to transform power into light, it is additionally used in red LEDs (light emitting diodes).
  • Because of its high boiling point, it is perfect for recording temperatures that would cause a thermometer to vaporise.
  • From iron pyrites, zinc blende, germanite, and bauxite, this metal can be readily removed as a byproduct.
  • Because gallium is a corrosive chemical, it can cause serious skin and eye burns asse well as significant irritation.

Learn more about semiconductors here

brainly.com/question/1918629

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7. Given a 32.0 g sample of methane gas (CH), determine the pressure that would be exerted on a container with
pishuonlain [190]

Answer:

P = 58.52 atm

Explanation:

Given data:

Mass of sample = 32.0 g

Pressure of sample = ?

Volume of gas = 850 cm³

Temperature of gas = 30°C

Solution:

Number of moles of gas:

Number of moles = mass/molar mass

Number of moles = 32.0 g/ 16 g/mol

Number of moles = 2 mol

Pressure of gas:

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will convert the temperature.

30+273 = 303 K

850 cm³ × 1L /1000 cm³ = 0.85 L

by putting values,

P× 0.85 L = 2 mol × 0.0821 atm.L/ mol.K  × 303 K

P = 49.75 atm.L/ 0.85 L

P = 58.52 atm

5 0
3 years ago
What is it about the structure of magnesium atoms that makes them react more slowly than calcium atoms?
vovikov84 [41]
Is there any answer so I can answer it
7 0
3 years ago
Which answer is INCORRECT not the correct one ​
Elena L [17]

Explanation:

It's 4

Hope it's help....

<h3>^_^</h3>
6 0
3 years ago
Read 2 more answers
Calculate the frequency if the wavelength of energy is 6.5 x 10^-7m
melamori03 [73]
The answer to the problem is
69.55
5 0
3 years ago
infrared and raman spectra of magnesium ammonium phosphate hexahydrate ( struvite ) and its isomorphous analogues . i . spectra
kodGreya [7K]

Magnesium potassium phosphate hexahydrate and a number of its deuterated counterparts were studied for their Fourier transform infrared and Raman spectra. By contrasting the spectra obtained at the boiling point of liquid nitrogen with those obtained at ambient temperature and by examining the spectra of a succession of partially deuterated MgKPO4

<h3>What is Infrared and raman spectroscopy ?</h3>

Raman and infrared spectroscopy both investigate how radiation interacts with molecular vibrations, but they do so in different ways depending on how the photon energy is delivered to the molecule by altering its vibrational state.

  • While IR spectroscopy depends on a change in the dipole moment, Raman spectroscopy depends on a change in the polarizability of a molecule. In contrast to IR spectroscopy, which measures the absolute frequencies at which a sample absorbs light, Raman spectroscopy measures the relative frequencies at which a sample scatters light.

Learn more about Spectroscopy here

brainly.com/question/17036549

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8 0
2 years ago
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